(19)

(11)

EP 4 090 889 A1

(12)

(43) Date of publication: 23.11.2022 Bulletin 2022/47 (21) Application number: 21700286.4 (22) Date of filing: 11.01.2021

(51) International Patent Classification (IPC):  F24D 10/00(2022.01) F24D 3/18(2006.01) F24F 5/00(2006.01) (52) Cooperative Patent Classification (CPC): F24D 10/003; F24F 5/0003; F24D 2200/13; F24D 3/18; F24D 2200/123; Y02E 20/14; Y02B 30/12; Y02B 30/17 (86) International application number: PCT/EP2021/050364 (87) International publication number: WO 2021/144216 (22.07.2021 Gazette 2021/29)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 16.01.2020 EP 20152155 (71) Applicant: E.ON Sverige AB 205 09 Malmö (SE)	(72) Inventors: ROSÉN, Per 227 33 Lund (SE) SKOGSTRÖM, Jacob 234 42 Lomma (SE) ROSENQVIST, Fredrik 254 51 Helsingborg (SE) CARLSTRÖM, Helen 237 36 Bjärred (SE) LINDOFF, Bengt 237 35 Bjärred (SE) (74) Representative: AWA Sweden AB  Box 5117 200 71 Malmö 200 71 Malmö (SE)